GHSA-g9p5-p7h5-p2wg
Record from GitHub Advisory Database · Published May 24, 2022
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.
Risk scores
Timeline
- May 24, 2022 CVE Published
- Apr 30, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-g9p5-p7h5-p2wg
vulnetix vdb fixes GHSA-g9p5-p7h5-p2wg
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-g9p5-p7h5-p2wg/fixes/registry"
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References
- https://nvd.nist.gov/vuln/detail/CVE-2021-33560 advisory
- https://dev.gnupg.org/T5305 url
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB url
- https://security.gentoo.org/glsa/202210-13 url
- https://www.oracle.com/security-alerts/cpuoct2021.html url
- https://dev.gnupg.org/T5328 url
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB url
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL url
- https://www.oracle.com/security-alerts/cpuapr2022.html url
- https://www.oracle.com/security-alerts/cpujan2022.html url
- https://www.oracle.com/security-alerts/cpujul2022.html url
- https://dev.gnupg.org/T5466 url
- https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61 url
- https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html url